Automatic pipe-vise.



1. w. DUFFY. AUTOMATIC PIPE VlSE..

APPLICATION FILED DEC-18. 1916.

Patented Apr.- 2, 1918;

2 SHEETS-SHEET 1 Z n; a fl/ W fl L y W m l M I MIL Z v KW m z WITNESSES ATTO R N EY J. W. DUFFY.

AUTOMATIC PIPE VISE. APPLICATION FILED 050.18.1916.

Patented Apr. 2, 1918. 2 SHEETS-SHEE" 2 (fair/0 Mil/ WITNESSES ATTORNEY JAMES w. DUFFY, or DRUMRIGHT, OKLAHOMA.

AUTOMATIC PIPE-VISE.

Specification of Letters Patent. Patented Apr. 1918.

Application filed December 18', 1916. Serial No. 137,646.

To all whom it may concern;

Be it known that I, JAMES W1 DUFFY, a citizen of the United States, residing at Drumright, in the county of Greek and State of Oklahoma, have inventedcertain new and useful Improvements in Automatic Pipe-Vises, of which the following is a specification.

V The present invention has reference gen erally to improvements in a vise and more particularly relates to an automatic pipe 1 VlSe.

upon the pipe or other object held by the aws. 1 It is an equally important object of the present invention to so construct the supportingframe in order to efiectively accommodate the body of the wheel jaw, and guide the movement of the wheel jaw.

More particularly, the present invention embraces the provision of novel means for I limiting the outward movement of the wheel jaw; to provide novel means for yieldingly mounting the wheels in the body of the wheel jaw.

. Among the other aims and objects of the present invention may be recited the provision of a device of the character mentioned and in which the number of parts are few, the construction simple, the cost of production low, and the efiiciency high. Other improvements and novel details in the construction and arrangement of the various parts of the device will be brought out more in detail in the description to follow, which, for a clear understanding of the invention, should be considered in connection with the accompanying drawings forming a part thereof and wherein is disclosed for the purpose of illustration, a convenient and satisfactory embodiment of the invention. It is to be noted, in this connection, that minor changes in the construction and arrangement of the parts may be made without departing from the spirit of-the invention, or principle of the operation of the various parts.

i The preferred embodiment of the invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a side elevation of my invention.

Fig. 2 is a horizontal section partly in top plan taken on line 22 of Fig. 1 in the direction in which the arrows point.

Fig. 3 is a vertical longitudinal section partly in elevation. v

Fig. 4 1s a transverse section taken on line 4:4: of Fig. l in the direction in which the arrow points.

Fig. 5 is a transverse section, partly in 7,0

elevation and is taken on line 55 of Fig. 3.

Referring now, more particularly, to the accompanying drawings, 1 provide my improved vise comprising asupport which in the present instance embodies an attaching 7 base 1 adapted to be rigidly mounted on a suitable main support through the medium of fastening devices 2.. Formed integral with the upper face of the base is a substantially U-shaped supporting framej3 the 0 lower portion of the frame being longer than the upper portion and extending throughout the length of the base. The adj acent faces of the upper and lower portions of the frame are prdvided with longitudinal grooves 4 .and 5 while the inner faces of the respective side walls of each of the grooves are provided with opposedracks 6 and 7 for a purpose that will presently 'appear. with the outer edges of the upper and lower portions of the frame 3 and serve to brace these portions of the frame adjacent the outer ends.

Sli'dably mounted in the frame is my imtion with the bottom of the grooves 4. and 5 while the shoulders 10 are formed where the body is reduced and ride upon the adjacent faces of the side portions of the frame 3. The body 9 has its front end bifurcated to provide a recess 11 while the side portions provided by the bifurcation and resting upon the adjacent faces of the side portions of the frame are also bifurcated to provide recesses 12 for a purpose to be described. A pair of wheels 13 having serrated peripheries 14 are carried by stub shafts 15 arranged concentrically therethrough. Therespective ends of Vertical bars 8 are formed integral' site faces of each of the wheels 13 and are engageable with the racks -6 and 7 during the sliding movement of the body 9. In order to normally hold the respective ends of the shafts 15 toward the outer ends of the slots I employ leaf springs 17 and mount the same in the recesses 12 by means of the pins 18 which extend in through the walls of the recesses, the springs having their respective ends bearing against the adjacent ends of the stub shafts 15 as indicated in Figs. 1 and 4.

With a view toward providing suitable means for yieldingly mounting the wheel jaw, I employ a coil spring 19 and arrange the respective ends in the recess 20 in the rear edge of the body and in a recess 21 in the intermediate portion of the U-shaped frame. Suitable means such as knob screw 22 is removably engageable with the body 9 and co-acts with the adjacent vertical bar 8 for limiting the outward movement of the movable wheel jaw.

Cooperating with the wheel jaw is my improved adjustable yet rigid jaw. In the presentinstance this jaw consists of a vertical upright hollow body 23 the jaw face of which is provided with a recess 24; while the lower side walls of the body are provided with opposed grooves 25 so that the body is slidably mounted on the long lower portion 7 of the support 3 as indicated in Fig. 5. This spring bears against a lug 34 which depends latter mentioned portion is provided on its upper face with teeth 26 while a pawl 27 is pivotally mounted in the jaw by means of transversely extending fastening devices 28. A handle 29 is ofiset from the shank 30 of the pawl while a leaf spring 31 is arranged in a recess 32 in the pawl and rigidly connected to the shank by means of suitable fastening devices 33. The outer end of the from the top of the body 23 and as is appareat the spring normally holds the pawl in engagement with the teeth 26 and when it is desired to adjust this jaw it is only necessary to press the handle 29 inwardly and reviewed as follows consequently release the pawl to permit of the jaw being adjusted to a predetermined position. Subsequent to adjustment the handle is released whereupon because of the action of the spring the pawl engages the teeth 26 and maintains the movable jaw in a substantially rigid position on the frame.

The-operation of this invention may be As illustrated in the drawings the vise is in an inoperative position, the set screw 22 coiiperating with one of the bars 8 to limit the outward movement of the wheel jaw. However, by engaging this set or knob screw 22 and sliding the body 9 against the tension of the spring 19 a pipe may be arranged against the jaw face 24 whereupon the screw 22 is released to consequently allow the spring 19 to automatically move the wheels into engagementwith the pipe in a manner that the wheels 13will cooperate with the jaw face 2% to effectively hold the pipe. It is also to be understood preparatory to. this arrangement that the jaw 23 is adjusted on the frame by pressing the handle 29 against the tension of the spring 31 and releasing the handle subsequent to the adjust ment. When a turning movement is imparted to the pipe (not shown), and assuming that the movement is directed upwardly toward the upper wheel 13, the lower wheel 13 will tend to rotate, and the rack 7 will be engaged by the teeth of the adjacent gear wheels 17. The lower stub shafts will thenmove against the tension of the lower ends of the spring 17. .During this movement the upper wheel 13 will be caused to rotate in the direction indicated by the arrow and will cause the gear wheel to move outwardly on the rack 6. As the adjacent stub shaft 15 is at the outer end of the slot 16, the body will move outwardly to a slight extent and cause one or the other of the wheels to bitingly engage the pipe. As is apparent,

this action is automatic and efiectively serves to retain the pipe in positlon. Of course if the turning movement is imparted in an opposite direction the operation will be reversed, that is, the upper wheel will be moved rearwardly, the shaft 15 moving through the slot while the lower wheel will move the body outwardly to a slight extent since the spring 17 normally holds the stub shafts adjacent the outer ends of the slots 16.

As many changes could be made'in the above construction and many apparently widely different embodiments of this inven-. tion could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall i and specific features of the invention herein described and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.

Having thus described my invention, what r I claim'as new and desire to secure by Letters Patent is 1. An automatic pipe vise including a supporting'base, a substantially U-shaped frame integral therewith and having the lower ortion longer than the upper portion an ar-' 2 ranged substantially parallel to the base, a

kin

jaw slidably including a body mounted in the frame, a pair of superposed wheels rotatably mounted in the jaw and slidable in the body, and resilient means mounted in the body for normally holding the wheels toward the outer end of the body, other resilient means interposed between the body and the frame for actuating the body and its Wheels, means engageable with the body and cooperating with the frame for limiting the outward movement of the body and for facilitating adjustment of the body, and a manually adjustable and substantially rigid jaw mounted on the long portion of the frame and cooperating with the wheels.

2. An automatic pipe vise including a base, a substantially U-shaped frame integral with the base and having the lower portion longer than the upper portion and arranged substantially parallel with respect to the base, the adjacent faces of the upper and lower portions of the frame being provided with longitudinal grooves, the sides of the grooves being recessed and provided with racks, a jaw body slidably mounted in the frame and having one end bifurcated to provide a recess, the side portions adjacent the recess being bifurcated, and the portions to the side of the recess being also provided with opposed pairs of horizontal slots, stub shafts mounted in the slots, wheels carried 'by the stub shafts and arranged one above the other, and within the first mentioned recess and in the grooves, gear wheels carried by the opposite faces of the wheels and by the shafts and also engageable with the racks, resilient means mounted in the body for normally holding the stub shafts toward the outer ends of the slots, a. coil spring interposed between the body and one end of the frame for yieldingly supporting the body, means for limiting the outward movement of the body, and a manually operable yet substantially rigid jaw mounted in the long portion of the frame and positioned opposite to thewheels for cooperation therewith.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES W. DUFFY.

Witnesses:

FRED A. WAGONER, MiLDREn DOUGHERTY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

